Who said "The future is not written in stone."?

This quote is attributed to Tyrion Lannister.

The future is not written in stone. - Tyrion Lannister

"The future is not written in stone."

Tyrion Lannister Hope

Character in A Game of Thrones

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"A man's got to know his limitations."

"The gods flip a coin."

"That's what I do. I drink and I know things."

"Lannister always pays their debts."

"Every day is a new opportunity."

"Hope is what gets us through difficult times."

"I'm not your enemy, kid. I'm trying to save you."

"Redemption is a long road."